著者名,書名,版表示,出版者名,出版年,シリーズ名,番号,ISBN,ISSN,URL "Engelbrekt, Kjell and Hallenberg, Jan",The European Union and strategy : an emerging actor,,Routledge,2008,Contemporary security studies,,9780415450607,,https://cir.nii.ac.jp/crid/1130282271737905536